Fixed-charge transportation problems on trees
نویسندگان
چکیده
منابع مشابه
Fixed-charge transportation problems on trees
We consider a class of fixed-charge transportation problems over graphs. We show that this problem is strongly NP-hard, but solvable in pseudo-polynomial time over trees using dynamic programming. We also show that the LP formulation associated to the dynamic program can be obtained from extended formulations of single-node flow polytopes. Given these results, we present a unary expansion-based...
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ژورنال
عنوان ژورنال: Operations Research Letters
سال: 2017
ISSN: 0167-6377
DOI: 10.1016/j.orl.2017.04.001